Posts

Summary

The time command measures the execution time of a given command or program. It provides information about the real time, user CPU time, and system CPU time used during the command's execution.

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The bg command in Linux is used to move a suspended (stopped) job to the background, allowing you to continue using the terminal while the job runs. This is particularly useful for long-running processes that don't require constant user interaction.

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The comm command is used to compare two sorted files line by line. It displays lines unique to the first file, lines unique to the second file, and lines common to both files.

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curl is a command-line tool used to transfer data with URL syntax, supporting protocols like HTTP, HTTPS, FTP, and more. It's often used for downloading files, testing APIs, and debugging web servers.

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The fold command is a simple utility that wraps lines of text to a specified width. This is useful for displaying long lines in terminals or text editors with limited width, or for preparing text for systems with specific line length requirements.

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The lsof command lists information about files opened by processes. It's invaluable for troubleshooting issues like identifying which process is locking a file or using a specific network port.

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netstat is a command-line utility for displaying network connections, routing tables, interface statistics, masquerade connections, and multicast memberships. It provides valuable insights into the network activity of a system.

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nmcli is a powerful command-line tool for controlling NetworkManager, allowing you to manage network connections, devices, and settings directly from the terminal.

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The paste command in Linux is used to merge corresponding lines of multiple files. It reads each file line by line and combines the lines into a single line, separated by a delimiter (default is a tab). This is a powerful tool for creating structured data from separate files or combining data from different sources.

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The uniq command in Linux is a simple but powerful tool used to filter out adjacent matching lines from an input file or stream. It's commonly used to clean up data, identify unique entries, and prepare data for further analysis.